Method and apparatus for encoding a video signal using region-based motion vectors

摘要

A motion compensation block for use in a motion-compensated video signal encoder determines a predicted current frame based on a current frame and a previous frame of a digital video signal.;The motion compensation block comprises a segmentation block for segmenting the previous frame into one or more segmented regions; a region-based displacement estimator for providing one or more displacement vectors between the current and the previous frames, each of the one or more displacement vectors representing a motion of each of the one or more segmented regions; a prediction block for constructing an intermediate predicted frame by translating each of the one or more segmented regions by a corresponding displacement vector; and a post-processing block for producing a motion vector for each pixel included in the intermediate predicted frame based on said one or more displacement vectors and generating a pixel value of the previous frame which corresponds to the motion vector for each pixel of the intermediate predicted frame as a pixel value thereof to thereby determine the predicted current frame.